28
Sun Solaris unused accounts disclosure
Finger
2003/11/14
Marc Ruef
marc dot ruef at computec dot ch
http://www.computec.ch
computec.ch
Marc Ruef
marc dot ruef at computec dot ch
http://www.computec.ch
computec.ch
2004/11/13
1.3
Corrected the plugin structure and added the accuracy values in 1.3
tcp
79
open|send a b c d e f g h\n|sleep|close|pattern_exists nobody
99
This plugin was written with the ATK Attack Editor.
Sun Solaris
Other unix systems
Configuration
A bug in the Sun Solaris finger daemon lets an attacker display all unused accounts. He has to send the request finger 'a b c d e f g h'@target.
The finger service, if not needed, should be disabled (in /etc/inetd.conf) or if possible firewalled. Sun Microsystems Inc. published a patch that solve this issue.
20 minutes
Yes
http://www.securityfocus.com/bid/3457/exploit/
Yes
Yes
Medium
7
7
6
6
Medium
Nessus is able to do the same check.
3457
10788
Hacking Exposed: Network Security Secrets & Solutions, Stuart McClure, Joel Scambray and George Kurtz, February 25, 2003, 4th Edition, McGraw-Hill Osborne Media, ISBN 0072227427
http://www.computec.ch